Hume’s attack on the supposition that we have an idea of the mind as distinct from its impressions thus constitutes a rejection of Berkeley’s commitment to the existence of mental substances, but not of idealism altogether. On Hume’s account, we are not entitled to assert the existence of both ideas and the minds, human or divine, that have them, but only the existence of the former. At the same time, he does not seem to think that we are forced into skepticism about either minds or external obj